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Subject[PATCH v2 0/5] K3 R5F & DSP IPC-only mode support
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Hi All,

The following is a revised version of the series that adds the IPC-only
mode support for the TI K3 R5F and DSP (C66x and C71x) remoteprocs
covering AM65x, J721E, J7200 and AM64x SoCs. Patches are on top of
5.14-rc1 (the other dependent patches from v1 made it into 5.14-rc1).

Please see the v1 cover-letter [1] for the design details of the
'IPC-only' mode functionality.

The following are the main changes from v1, please see the individual
patches for the exact deltas:
- The first patch in v1 "remoteproc: Introduce rproc_detach_device()
wrapper" is dropped
- Removed the addition of the rproc state flag 'detach_on_shutdown'
and the 'ipc-only' state flag in each of the remoteproc drivers
- IPC-only mode and remoteproc mode are supported by registering only
the appropriate rproc ops.

The following is a summary of patches in v2:
- Patch 1 enhances the remoteproc core to restrict stop on early-booted
remoteprocs.
- Patches 2 and 4 refactor the mailbox request code out of start
in the K3 R5F and DSP remoteproc drivers for reuse in the new attach
callbacks.
- Patch 3 adds the IPC-only mode support for R5F.
- Patch 5 adds the IPC-only mode support for both K3 C66x and C71x
DSPs.

I have re-verified the different combinations on J721E, J7200 and AM65x
SoCs. AM64x currently lacks early-boot support, but the logic is ready
for Single-CPU and Split modes that are specific to AM64x SoCs.

regards
Suman

[1] https://patchwork.kernel.org/project/linux-remoteproc/cover/20210522000309.26134-1-s-anna@ti.com/

Suman Anna (5):
remoteproc: Add support for detach-only during shutdown
remoteproc: k3-r5: Refactor mbox request code in start
remoteproc: k3-r5: Add support for IPC-only mode for all R5Fs
remoteproc: k3-dsp: Refactor mbox request code in start
remoteproc: k3-dsp: Add support for IPC-only mode for all K3 DSPs

drivers/remoteproc/remoteproc_cdev.c | 7 +
drivers/remoteproc/remoteproc_core.c | 5 +-
drivers/remoteproc/remoteproc_sysfs.c | 6 +
drivers/remoteproc/ti_k3_dsp_remoteproc.c | 197 ++++++++++++----
drivers/remoteproc/ti_k3_r5_remoteproc.c | 265 +++++++++++++++++++---
5 files changed, 407 insertions(+), 73 deletions(-)

--
2.32.0

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